Renamed constants to start PKBASC_ for compatibility
Merge branch 'MultipleClassOOP' of https://github.com/PhilTanner/PKB-ASC into MultipleClassOOP

* 'MultipleClassOOP' of https://github.com/PhilTanner/PKB-ASC:
  Attendance records for student object
  Money functions added to Student object.
  update to studentList()
  Added getter for visible display setting
  Fix of duplication for constant prefixes
  More CONSTANT renames
  Renaming of constants for standardisation
  New Report & Invoice Object Classes
  Removal of superfluous student functions
  Removal of typo introduced with whitespace removal
  Removal of extraneous whitespace
  Student details update using the new OOP design
  Fully working student object
  Removed check for latest version during development